Printers, like all other electrical devices, are affected by temperature, humidity, and electrical interference. Laser printers produce heat and should be operated in well-ventilated areas to prevent overheating.

Keep paper and toner cartridges in their original wrappers. These supplies should also be stored a cool, dry, dust-free environment. High humidity causes paper to absorb moisture from the air. This can cause the paper to wave, which causes pieces of paper to stick together or jam during the printing process. High humidity can also make it difficult for the toner to attach to the paper correctly. If the paper and printer are dusty, you can use compressed air to blow away the dust.